Bearing Ledge BMW E82 E90 135i 335i N54 Exhaust Camshaft Cylinder Head Engine

Bearing Ledge BMW E82 E90 135i 335i N54 Exhaust Camshaft Cylinder Head Engine is a precision timing system component designed for the N54 engine unit in the E90 335i model. It is responsible for providing stable, mechanical support for the camshaft, which translates into reliable engine operation and proper interaction with other timing components. As an original BMW part from the Camshafts category, it ensures proper geometry and fitment to the cylinder head.

Specifications and technical data

• SKU: 7584804
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7584804
• Substitutable numbers: 11317584804, 7584804, 11317541021, 7541021, 11317551509, 7551509, KZ
• Category: Camshafts

Purpose and function in the N54 engine

The camshaft bearing ledge in the N54 engine is responsible for the rigid and repeatable positioning of the camshaft relative to the cylinder head. A correctly selected component:

• maintains proper camshaft alignment relative to the bearings and oil channels,
• ensures stable camshaft guidance at high RPMs and loads,
• supports the correct operation of the variable valve timing system,
• minimizes the risk of excessive wear on mating surfaces.

By using an original bearing ledge, the timing system maintains the parameters specified by the manufacturer, which is important for both the durability and the smooth operation of the N54 unit.

Benefits of using an original BMW ledge

Choosing an original component from the Camshafts group allows you to maintain factory assembly tolerances and engine performance characteristics. Key advantages include:

• precise fitment to the N54 cylinder head without the need for modifications,
• compliance with official BMW service documentation,
• hassle-free installation in place of a worn or damaged ledge,
• consistency with other original timing system components.

This type of component is particularly important during tasks such as cylinder head overhauls, camshaft replacement, or timing system diagnostics in the N54 engine, where high assembly precision is required.

Characteristics of the used component

The presented camshaft bearing ledge is offered as a used part, which provides a cost-effective solution while maintaining the manufacturer's original specifications. This type of component, sourced from disassembly, allows you to:

• reduce repair costs compared to a new OEM part,
• maintain the original timing system design without using aftermarket replacements,
• preserve compatibility with factory service procedures.

For structural timing system components such as the bearing ledge, using an original used part is a frequently chosen solution in professional workshops specializing in the BMW brand.

Technical support and part selection

The camshaft bearing ledge is linked to specific part numbers and supersession numbers, which facilitates its identification in BMW catalogs and selection for the correct engine configuration. When planning a repair, it is worth verifying the component's compatibility with the engine code and vehicle model year to ensure full compatibility with the cylinder head and camshaft.

If you are planning a comprehensive repair or upgrade of your BMW engine area and need other components from the same group, such as camshafts, mounts, or parts interacting with the timing system, check the available parts in the BMW Camshafts category.

BMW timing systems and service practice

The timing system in modern BMW units requires an informed service approach, especially in the context of diagnosing wear and planning repairs. It is worth familiarizing yourself with practical tips regarding the operation of timing systems in engines of this brand – symptoms of wear, repair costs, and the validity of using original used parts. You can find useful information in the article BMW N47 Timing Chain – typical failure and repair using original BMW parts, which discusses common problems and the approach to servicing timing systems in BMW engines.